.close {
  position: relative;
}
.close_btn {
  position: absolute;
  right: 0px;
  top: 0px;
  width: 20px;
  height: 20px;
  background-color: rgba(0, 0, 0, 0.7);
  border-radius: 50%;
  z-index: 99;
  text-align: center;
  line-height: 20px;
  color: #ffffff;
  font-size: 12px;
}
.open {
  position: relative;
}
.open_btn {
  position: absolute;
  right: 0px;
  top: 0px;
  background-color: rgba(0, 0, 0, 0.7);
  color: #fff;
  width: 100%;
  height: 100%;
  font-size: 16px;
  text-align: center;
  line-height: 20px;
}
